与RPi建立成功的蓝牙连接 [英] Making a successful Bluetooth Connection to RPi

问题描述

我的PC上有一个RPi和一个普通的Debian，都使用Bluetooth Python模块进行通信.两者都有一些蓝牙USB加密狗. 我可以将pc用作服务器，将RPi用作客户端，此连接效果很好.但是，反之亦然，我无法做到这一点，我检查了rfcomm.conf和main.conf，但似乎都没问题. 还有其他陷阱吗?

I have a RPi and a normal Debian on my pc, both using the Bluetooth Python module to communicate. Both have some Bluetooth USB dongle in them. I can use the pc as server and the RPi as client, this connection works very well. However I'm not able to do it vice versa, I checked my rfcomm.conf and main.conf, but both seem to be ok. Any other pitfalls?

#Server.py

import bluetooth

server_sock=bluetooth.BluetoothSocket( bluetooth.RFCOMM )

port = 1
server_sock.bind(("",port))
server_sock.listen(1)

client_sock,address = server_sock.accept()
print "Accepted connection from ",address

data = client_sock.recv(1024)
print "received [%s]" % data

client_sock.close()
server_sock.close()

---

#Client.py

import bluetooth

bd_addr = #myspecificmacaddress

port = 1

sock=bluetooth.BluetoothSocket( bluetooth.RFCOMM )
sock.connect((bd_addr, port))

sock.send("hello!!")

sock.close()

---

更准确地说:在RPi上运行Client.py并在pc上运行Server.py可以正常工作，反之亦然，显然是在纠正了MAC的情况下，只需说:bluetooth.btcommon.BluetoothError: (112, 'Host is down')

---

So to be more precise: Running Client.py on RPi and Server.py on pc works fine, doing vice versa, obviously with corrected MAC, simply says: bluetooth.btcommon.BluetoothError: (112, 'Host is down')

推荐答案

原来我的配置文件不太好. (它必须对配置文件进行某些操作)

Turned out that my config files weren't that well. (it must had to do something with config files)

/etc/bluetooth/main.conf具有一个类部分. /var/lib/bluetooth/XX:XX:XX:XX:XX:XX/config也有一个类部分.

/etc/bluetooth/main.conf has a class section. /var/lib/bluetooth/XX:XX:XX:XX:XX:XX/config has a class section, too.

我不知道为什么，我不知道实际情况或实际发生的事情，因为您无法在Internet上找到关于此的任何信息，但是将 both 都设置为0x400100可以解决该问题.我不知道他们是否必须匹配，或者这是我发大财的特殊事情，但是它确实有效，我真的不想再次打破它.

I do not know why, I do not know how or what is actually happening, as you are not able to find anything about this on the internet, but setting both to 0x400100 fixed it. I don't know if they just have to match or if it's some special thing I came up by fortune, but it works and I dont really want to possibly break it again.

也许对此有更多了解的人愿意在这里改善我的答案.

Maybe someone with more knowledge about this is willing to improve my answer here.

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